Question

Two technicians are discussing the testing of a catalytic converter. Technician A says that a vacuum gauge can be used and observed to see if the vacuum drops with the engine at 2500 RPM for 30 seconds. Technician B says that a pressure gauge can be used to check for backpressure. Which technician is correct?

A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

Answer 1

Both technicians A and B

Step-by-step explanation:

Restricted exhaust flow is caused due to overheating of the catalytic converter. To measure the exhaust system, back pressure a pressure gauge is inserted into the oxygen sensor's bore in the exhaust. Hence they are both correct

Answer 2

Answer is C. Both technicians A and B.

Refer below.

Step-by-step explanation:

Two technicians are discussing the testing of a catalytic converter. Technician A says that a vacuum gauge can be used and observed to see if the vacuum drops with the engine at 2500 RPM for 30 seconds. Technician B says that a pressure gauge can be used to check for backpressure. The following technician is correct:

Both technicians A and B